| Troy to Rockport (Texas) | 1,272.12 mi (2,047.28 km) |
| Troy to Rockville (Maryland) | 395.42 mi (636.37 km) |
| Troy to Rockville Centre (New York) | 508.29 mi (818.02 km) |
| Troy to Rockwall (Texas) | 984.29 mi (1,584.06 km) |
| Troy to Rocky Mount (North Carolina) | 538.62 mi (866.83 km) |
| Troy to Rocky Point (New York) | 537.98 mi (865.80 km) |
| Troy to Rocky River (Ohio) | 101.50 mi (163.35 km) |
| Troy to Roessleville (New York) | 475.02 mi (764.48 km) |
| Troy to Rogers (Arkansas) | 728.55 mi (1,172.48 km) |
| Troy to Rogers (Minnesota) | 549.33 mi (884.07 km) |
| Troy to Rohnert Park (California) | 2,080.37 mi (3,348.03 km) |
| Troy to Rolla (Missouri) | 555.32 mi (893.71 km) |
| Troy to Rolling Meadows (Illinois) | 251.66 mi (405.01 km) |
| Troy to Roma (Texas) | 1,431.18 mi (2,303.26 km) |
| Troy to Rome (Georgia) | 585.01 mi (941.49 km) |
